Jack Dorsey (born November 19, 1976) is an American
programmer and
entrepreneur widely known as a co-founder and CEO of
Twitter, and as the founder and CEO of
Square, a
mobile payments company. In 2008, he was named to the
MIT Technology Review TR35 as one of the top 35 innovators in the world under the age of 35. For 2012,
The Wall Street Journal gave him the "Innovator of the Year Award" for technology.